Topband: ADC Overload

I always marveled with my TT Orion 1, before I died, on SSB when a very strong signal was on frequency that often a weak one would stand out in the noise suppressed band. Never found out if this was from the DSP or earlier analog string. N0UU _ Topband Reflector Archives -

Re: Topband: ADC Overload

I have used Orions and agree, the NR (not noise blanker) is remarkably effective for marginal, below the noise level, signals on SSB. This was definitely DSP techniques. Other more modern DSP rigs (e.g. K3, Eagle) do not have that exact feature in their DSP. I'm not saying that K3 and Eagle DSP

Re: Topband: ADC Overload

It might be a matter of terminology, but the technique actually involves RAISING the AGC Threshold so that gain compression only kicks in on the strongest signals and there's a linear gain curve for everything below that level. From s1 to s9 is a delta of ~48dB, so a full implementation of K3NA's

Re: Topband: ADC Overload

Perhaps an alternative analogy would be helpful here... Each of the many signals can be imagined as its own phasor. One end of the phasor is anchored on the origin (0 V) and the other is spinning around the origin at the frequency of the signal with a length equal to its amplitude. Since the

Topband: Pre-Stew

Ahem... Pre-Stew is in THREE days! Tim N3QE On Wednesday, October 14, 2015, Tree wrote: > Good day all - thought I would share some more experience I have had with > loading a tower with a SteppIR on top of it. > > As I reported last season - I used a loaded tower at NE7D with

Topband: Loading tower with SteppIR on top

Good day all - thought I would share some more experience I have had with loading a tower with a SteppIR on top of it. As I reported last season - I used a loaded tower at NE7D with a DB-18E on it to work the K1N DX pedition. Recently - I acquired a MonsterIR and after talking to ZL3IX, I

Topband: 2015 Summer Stew Results Posted

The results for the Topband Summer Stew are now available http://www.kkn.net/stew/2015_SummerStew.txt The PreStew is coming up this weekend. Full rules are available here: http://www.kkn.net/stew/ Hope to hear you on 160 meters this weekend. 73 Tree N6TR _ Topband Reflector

Re: Topband: ADC Overload

Yes, *raise* the trigger threshold. tnx Mike / W5JR Alpharetta GA > On Oct 14, 2015, at 5:44 AM, Barry N1EU wrote: > > It might be a matter of terminology, but the technique actually involves > RAISING the AGC Threshold so that gain compression only kicks in on the >

Re: Topband: Pre-Stew

Oh my!!! You would think I would know that. The PreStew is in THREE DAYS everyone! Full rules here: http://www.kkn.net/stew/ I will try to get the Summer Stew scores posted before it starts. Tree On Wed, Oct 14, 2015 at 3:50 PM, Tim Shoppa wrote: > Ahem... Pre-Stew is in